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Asynchronous Process inside a javascript for loop [duplicate]
...
function XHRpost(i) {
return new Promise(function(resolve) {
let params = 'id=nobot&%3Aoperation=social%3AcreateForumPost&subject=Demo' + i + '&message=Here%20is%20the%20Demo&_charset_=UTF-8';
http.open('POST', url, true);
http.setRequestHeader('Content-type', 'ap...
Is it possible to have empty RequestParam values use the defaultValue?
...
You could change the @RequestParam type to an Integer and make it not required. This would allow your request to succeed, but it would then be null. You could explicitly set it to your default value in the controller method:
@RequestMapping(value = "/te...
How do you cast a List of supertypes to a List of subtypes?
...st works; but it doesn't work because you can't cast a generic type of one parameter to another. However, you can cast through an intermediate wildcard type and it will be allowed (since you can cast to and from wildcard types, just with an unchecked warning):
List<TestB> variable = (List<...
Get a list of resources from classpath directory
... * pattern = Pattern.compile(".*"); gets all resources
*
* @param pattern
* the pattern to match
* @return the resources in the order they are found
*/
public static Collection<String> getResources(
final Pattern pattern){
final Arra...
What is the parameter “next” used for in Express?
...el with an async findOne():
function loadUser(req, res, next) {
if (req.params.userId) {
Users.findOne({ id: req.params.userId }, function(err, user) {
if (err) {
next(new Error("Couldn't find user: " + err));
return;
}
req.user = user;
next();
});...
Creating a new DOM element from an HTML string using built-in DOM methods or Prototype
..., then reaching into the template's .content property.
Examples:
/**
* @param {String} HTML representing a single element
* @return {Element}
*/
function htmlToElement(html) {
var template = document.createElement('template');
html = html.trim(); // Never return a text node of whitespac...
Access-control-allow-origin with multiple domains
...mary>
/// Enables Cross Origin
/// </summary>
/// <param name="appSettingKey">AppSetting key that defines valid origins</param>
public EnableCorsByAppSettingAttribute(string appSettingKey)
{
// Collect comma separated origins
this.rawOrigins =...
How to add dividers and spaces between items in RecyclerView?
...reviously in the ListView class, using the divider and dividerHeight parameters:
41 Answers
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An example of how to use getopts in bash
...nded value. You can hack around this if you absolutely know that an option parameter cannot look like another valid option, yes, but one could say there's a reason optional arguments are not defined in POSIX.
– Adrian Frühwirth
Mar 13 '15 at 9:40
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Why can't you modify the data returned by a Mongoose Query (ex: findById)
...ance, you can call lean() on the query chain like so:
Survey.findById(req.params.id).lean().exec(function(err, data){
var len = data.survey_questions.length;
var counter = 0;
_.each(data.survey_questions, function(sq){
Question.findById(sq.question, function(err, q){
...